Call recording device



Sept. 2, 194.1. A. F. voN soD'EN I CLL RECORDING DEVICE Fileci Nov. 23, 1938 Patented Sept. 2, .1941

CALL RECORDING DEVICE Adolph F. von Soden, Los Angeles, Calif., assigner of one one-thousandth to Corey R. Cheney,

Long Beach, Calii'.

Application November 23, 1938, Serial No. 242,004

3 Claims.

My invention relates to telephone incoming call or code recording devices and more particularly to the novel form of call recording instruments, adapted for recording and registering all such incoming calls which may come in through the telephone of the subscriber or user during his absence.

Manifestly, an object of my invention -is to provide a simple and inexpensive telephone call or code recording device or instrument, consisting of suitable receiving amplifying and recording means which will send out and receive electrical impulses corresponding in variety and intensity produced within the instrument wherein such variations occur, so that the diierence of impulses received or created within said instrument, may be permanently recorded.

Another object of my invention is to provide suitable combined sending and receiving set or apparatus which may be positioned in close proximity .to the standard or conventional telephone system, said apparatus being provided with suitable diaphragm adapted to be actuated by the ringing sound of the telephone bell, so that, by

i the vibratory action of said diaphragm, a contact within said apparatus may be established and maintained.

Another object of my invention is to provide said apparatus in combination with a set of suitable current actuating cells, such as selenium cells or the like, to which suitable galvanometers are attached, so that, the ow of the electrical current passing into and therefrom, may be re- -corded and'registered upon said galvanometers.

A further object of my invention is to provide said apparatus in combination with a set of suitable code recording means, `operable by said flow of the electrical current passing through said galvanometers, so that, the difference of potential energy, adapted to actuate correspondingly said galvarmneters may be registered and recorded, in terms\ofsu itably arrangednumerical values, representing variations of numerical digits, which are recognized as a special or selectively arranged set of numbers, corresponding to the station number, .wherefrom the message was to be forthcoming orthe telephonie contact was intended to be established.

A further object of my invention is to provide an apparatus having in combination a suitably arranged housing which is equipped with an instrument such as a clock or the like, having therein a set o! suitably arranged means adapted to be used tor transmitting and receiving variations of electrical impulses created therein, thus of the telephonic system between certain stations and between which the telephonie contact is l sought to be established and further, having suitable means adapted .to operate said device at a speed and intensity which may be regulated to correspond to the 4time required for said `con.

tact to be established and registered, also in addition, having suitable means or a set of means adapted to permanently record said transmitted electrical impulses created and recorded by .the said recording means within said apparatus.

Further'objects and advantages of my invention as will hereinafter more fully appear, I attain by the construction herein shown on the drawing and described in the specification forming a part of my application..

Reference is had to the accompanying drawign, in which the similar reference characters denote the similar parts.

In the drawing:

Fig. 1 shows a perspective view of a telephonie and recording apparatus, having the contact esnated by numeral 2 which is equipped with suitable receiver 4 having a microphone 6 positioned as shown, also having suitable selectors 8 protruding therefrom at one side.- further, having a suitable electric clock member I0 positioned therein which is energized by means of the electric current passing therethrough and through the line l2 connecting a suitable plug or switch member Il.

The clock member I0 is connected to said apparatus for the purpose oi' registering the time and since the outside current is required to operate the electric circuit, therefore said switch Il may, it so desired, be connected to the source of electrical energy produced by a suitable generator Il which provides the entire circuit set invention comprises a housing, generally desig- -set which is the receiving and sending system `and is completing its circuit' through the ground that, when the lobe |48 in its rotary movement, will close the switch |06, allowing the electrical energy to pass through the system for energizing the said solenoid |02, which will cause the plate 96 to press the paper tape 94 against the numerical imprints and thus recording the calling number, or message.

It may be noted that the apparatus for recording the incoming calls may, if so desired, be provided with apair of sets, comprising said photo-electric cells and 1I, of which, one set is for receiving and recording the passing electrical impulses which is sent by the sending station, while the other is for sending the said impulses at a deiinitely established intensity or pressure to the other which is the receiving station ofv the system and wherein said impulses are sought to be established when the receiver and the switch 20 is closed, said current passing into the and delivered by means of the said generator I6.

From the description herein disclosed, it may also be noted that the electrical current or currents passing through the system and substantially through the ground while synchronously established within said cells, is thoroughly insulated so as to prevent an outside interference and which is due to the fact, that the. sending station combined set is energized differently, there never being two stations alike and therefore, preventing so called tapping orginterfering during conversation,\ or interfering with code messages.'

Therefore, while I have thus described my invention with great particularity; it will be clear that the same may be modified throughout a wide range I accordingly do not propose to be i limited to the exact details of construction herein which may come within the scope of the appended claims.

I claim as my invention:

l. In a telephone calling number recording device, a sound diaphragm, an electriccircuit contact means connected with said sound diaphragm for closing the 'electric circuit contact and to energize said recording device, a ground contact means connecting saidf electric circuit contact means, a printing means energized by said sound diaphragm and actuated by the passing current passing through said electric circuit.. contact means for printing the incoming calling numbers, a plurality of photo-electric cell means associated with said sound diaphragm and said printing means 'and energized by the passing electric current for sending out andreceivingthe electrical impulses passing through said electric circuit contact means so that the electric current in its intensity which corresponds to the respective number or digit may be printed and recorded, and source of electric current supply connecting said recording device for supplying the electric current into said electric circuit consaid electric circuit and adapted for closing said l ground Contact means and for energizing said recording device, a set of printing means actuated by said sound diaphragm contact means and energized by the passing electrical' current for receiving and for printing the incoming calling code numbers, a set of photo-electric cell means associated with said electric circuit and said printing means for actuating each printing shown and described but reserve the right ini practice to make such modications and changes,

means independently of the other, a set of galvanometer means associated with said photoelectric cell means and said electric circuit for controlling the electric current pressure passing into each of said printing means, and contact switch means associated with said electric circuit for controlling the passage of the electrical current passing through said electric circuit of said recording device wherein said code calling numbers are to be recorded and for recording and printing same when said ground contact means is established, substantially as described.

3. In the recording devicesl of the class described adapted for sending out and receiving the calinumbers or the like, each device performing as a; separate unit or` station and each having a ground contact connecting each device independently of the other, each comprising a sound diaphragm means,v an electric circuit means associated with said diaphragm means adapted for energizing said recording device by the sound vibrations produced therein andcaused by the sound of the-bell, a source of electrical supply, an electric contact means associated with said sound diaphragm means for establishing an electro-magnetic contact be. tween said sending and the receiving unit or station, a set of photo-electric cell means asso-` ciated with, said electric circuit means, a set of printing means associated with said photo-electric cell means, a set of galvanometer means con-J nected independently with each of said printing means and said photo-electric cell means for controlling the pressure of the electric current passing therethrough and for actuating -said printing means when said electric current in Y said photo-electric cell means is established, and

contact closing means associated with said electric circuit means and said ground contact of each recording device and energized by the sound vibrations produced in said l diaphragm means for closing said electric circuit between each unit or station and thereby preventing an outside interference while said units or stations areI in communication and while sending, re

ceiving, printingor recording said call numbers, substantially as described..

I ADoLPH F. von SODEN, 

